Clamp.



No. 819,887. PATENTED MAY 8, 1906.

A. 0. JONES.

CLAMP.

APPLICATION FILED MAY 15, 1905.

[NVE/VTOR J /A0 By {if 2m fl fm *6 UNITED STATES PATENT OFFICE.

ALBERT ORIN JONES, OF EAST CONNEAUT, OHIO, ASSIGNOR OF ONE-HALF TO BENKENNEDY, OF CONNEAUT, OHIO.

CLAMP.

Specification of Letters Patent.

Patented May 8, 1906.

Application filed May 15,1905. Serial No. 260,511.

To all whom it may concern;

Be it known that I, ALBERT ORIN J oNEs, a citizen of the United States,residing at East Conneaut, in the county of Ashtabula and State of Ohio,have invented new and useful Improvements in Clamps, of which thefollowing is a specification.

This invention is a clamp designed particularly for the use ofcarpenters and cabinetmakers and suitable especially for holding doorand window frames and the like while working on them. 'It is of coursenot limited to such use, but maybe employed as a clamp or vise whereverit may be found useful.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a perspective view of the device. Fig. 2 is a perspectiveview of the movable clamping-jaw and its operating-lever. Fig. 3 is aperspective view of an adjustable block in which the movable jaw slides.Fig. 4 is an inverted plan view showing the bottom of the bed-plate.

Referring specifically to the drawings, 1 indicates the fixed jaw,rigidly mounted upon the bed-plate 8 by means of cap-screws 12 or it maybe made integral therewith.

The bed-plate is slotted, as at 6, opposite the fixed jaw to receive therib 9, projecting from tHe bottom of the adjustable fulcrumblock 3. Thisrib guides the movement of the block, which is held in place by screwand washer 10 and set-screw and washer 11, which latter extends throughthe foot of the block and has a thumb-nut 5 thereon to fix the parts atadjustment. The block has a central longitudinal recess 13 in the topwhich has undercut grooves on opposite sides at the bottom thereof, asat 14.

The movable jaw 2 has a projecting rib 15, which fits in the recess 13,and tongues 16, which fit in the grooves 14. In the top of the rib 15 isa segmental recess 17, which receives the cam 18 at the end of a lever4, which is pivoted to the block 3 by a in 7.

In use the clamp is roug y adjusted to the Work by moving the slidingblock 3 and setting the same with the thumb-screw. The work can then beclamped between the jaws by pressure down on the lever 4. Vibration othe lever slides the jaw 2 back and forth as desired.

What I claim as new, and desire to secure by Letters Patent, is

A clamp comprising a base having a fixed jaw thereon and a slottherethrough opposite said jaw, an adjustable block on the base oppositesaid jaw and having a rib in the slot and an undercut recess in the top,a setscrew carried by the block and extending through the slot, to bindthe block at adjustment, a movable jaw having a rearwardlyprojectingportion fitting and slidable in said recess and a segmental recess inthe to of said ortion, and a lever pivoted to the b ock and aving a camfitting in said segmental recess, to advance or retract the movable aw.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALBERT ORIN JONES.

Witnesses:

A. B. ORITTENDEN, BEN KENNEDY.

